{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63945",
    "entityType": "User",
    "nonce": "0x785ec544593ae05ac03d66bb553bfddcfbb7f8f4b332ce7a5da11fd92ce0d520",
    "signature": "0x2684745a36933b2349fcb3cecad82af490a816d9a10d9c9df4b4cf9146c5a7a956a336819a894a2bb89b11f0cf1acfaab19cefd2bc89c2da08c9d9bdf11947261b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}